import {
  AdditiveBlending,
  BufferGeometry,
  Color,
  DoubleSide,
  FileLoader,
  Float32BufferAttribute,
  Group,
  Loader,
  LoaderUtils,
  Matrix4,
  Mesh,
  MeshPhongMaterial,
  TextureLoader
} from "../../build/three.module.js";

/**
 * Autodesk 3DS three.js file loader, based on lib3ds.
 *
 * Loads geometry with uv and materials basic properties with texture support.
 *
 * @class TDSLoader
 * @constructor
 */

var TDSLoader = function (manager) {

  Loader.call(this, manager);

  this.debug = false;

  this.group = null;
  this.position = 0;

  this.materials = [];
  this.meshes = [];

};

TDSLoader.prototype = Object.assign(Object.create(Loader.prototype), {

  constructor: TDSLoader,

  /**
   * Load 3ds file from url.
   *
   * @method load
   * @param {[type]} url URL for the file.
   * @param {Function} onLoad onLoad callback, receives group Object3D as argument.
   * @param {Function} onProgress onProgress callback.
   * @param {Function} onError onError callback.
   */
  load: function (url, onLoad, onProgress, onError) {

    var scope = this;

    var path = (this.path === '') ? LoaderUtils.extractUrlBase(url) : this.path;

    var loader = new FileLoader(this.manager);
    loader.setPath(this.path);
    loader.setResponseType('arraybuffer');
    loader.setRequestHeader(this.requestHeader);
    loader.setWithCredentials(this.withCredentials);

    loader.load(url, function (data) {

      try {

        onLoad(scope.parse(data, path));

      } catch (e) {

        if (onError) {

          onError(e);

        } else {

          console.error(e);

        }

        scope.manager.itemError(url);

      }

    }, onProgress, onError);

  },

  /**
   * Parse arraybuffer data and load 3ds file.
   *
   * @method parse
   * @param {ArrayBuffer} arraybuffer Arraybuffer data to be loaded.
   * @param {String} path Path for external resources.
   * @return {Group} Group loaded from 3ds file.
   */
  parse: function (arraybuffer, path) {

    this.group = new Group();
    this.position = 0;
    this.materials = [];
    this.meshes = [];

    this.readFile(arraybuffer, path);

    for (var i = 0; i < this.meshes.length; i++) {

      this.group.add(this.meshes[i]);

    }

    return this.group;

  },

  /**
   * Decode file content to read 3ds data.
   *
   * @method readFile
   * @param {ArrayBuffer} arraybuffer Arraybuffer data to be loaded.
   * @param {String} path Path for external resources.
   */
  readFile: function (arraybuffer, path) {

    var data = new DataView(arraybuffer);
    var chunk = this.readChunk(data);

    if (chunk.id === MLIBMAGIC || chunk.id === CMAGIC || chunk.id === M3DMAGIC) {

      var next = this.nextChunk(data, chunk);

      while (next !== 0) {

        if (next === M3D_VERSION) {

          var version = this.readDWord(data);
          this.debugMessage('3DS file version: ' + version);

        } else if (next === MDATA) {

          this.resetPosition(data);
          this.readMeshData(data, path);

        } else {

          this.debugMessage('Unknown main chunk: ' + next.toString(16));

        }

        next = this.nextChunk(data, chunk);

      }

    }

    this.debugMessage('Parsed ' + this.meshes.length + ' meshes');

  },

  /**
   * Read mesh data chunk.
   *
   * @method readMeshData
   * @param {Dataview} data Dataview in use.
   * @param {String} path Path for external resources.
   */
  readMeshData: function (data, path) {

    var chunk = this.readChunk(data);
    var next = this.nextChunk(data, chunk);

    while (next !== 0) {

      if (next === MESH_VERSION) {

        var version = +this.readDWord(data);
        this.debugMessage('Mesh Version: ' + version);

      } else if (next === MASTER_SCALE) {

        var scale = this.readFloat(data);
        this.debugMessage('Master scale: ' + scale);
        this.group.scale.set(scale, scale, scale);

      } else if (next === NAMED_OBJECT) {

        this.debugMessage('Named Object');
        this.resetPosition(data);
        this.readNamedObject(data);

      } else if (next === MAT_ENTRY) {

        this.debugMessage('Material');
        this.resetPosition(data);
        this.readMaterialEntry(data, path);

      } else {

        this.debugMessage('Unknown MDATA chunk: ' + next.toString(16));

      }

      next = this.nextChunk(data, chunk);

    }

  },

  /**
   * Read named object chunk.
   *
   * @method readNamedObject
   * @param {Dataview} data Dataview in use.
   */
  readNamedObject: function (data) {

    var chunk = this.readChunk(data);
    var name = this.readString(data, 64);
    chunk.cur = this.position;

    var next = this.nextChunk(data, chunk);
    while (next !== 0) {

      if (next === N_TRI_OBJECT) {

        this.resetPosition(data);
        var mesh = this.readMesh(data);
        mesh.name = name;
        this.meshes.push(mesh);

      } else {

        this.debugMessage('Unknown named object chunk: ' + next.toString(16));

      }

      next = this.nextChunk(data, chunk);

    }

    this.endChunk(chunk);

  },

  /**
   * Read material data chunk and add it to the material list.
   *
   * @method readMaterialEntry
   * @param {Dataview} data Dataview in use.
   * @param {String} path Path for external resources.
   */
  readMaterialEntry: function (data, path) {

    var chunk = this.readChunk(data);
    var next = this.nextChunk(data, chunk);
    var material = new MeshPhongMaterial();

    while (next !== 0) {

      if (next === MAT_NAME) {

        material.name = this.readString(data, 64);
        this.debugMessage('   Name: ' + material.name);

      } else if (next === MAT_WIRE) {

        this.debugMessage('   Wireframe');
        material.wireframe = true;

      } else if (next === MAT_WIRE_SIZE) {

        var value = this.readByte(data);
        material.wireframeLinewidth = value;
        this.debugMessage('   Wireframe Thickness: ' + value);

      } else if (next === MAT_TWO_SIDE) {

        material.side = DoubleSide;
        this.debugMessage('   DoubleSided');

      } else if (next === MAT_ADDITIVE) {

        this.debugMessage('   Additive Blending');
        material.blending = AdditiveBlending;

      } else if (next === MAT_DIFFUSE) {

        this.debugMessage('   Diffuse Color');
        material.color = this.readColor(data);

      } else if (next === MAT_SPECULAR) {

        this.debugMessage('   Specular Color');
        material.specular = this.readColor(data);

      } else if (next === MAT_AMBIENT) {

        this.debugMessage('   Ambient color');
        material.color = this.readColor(data);

      } else if (next === MAT_SHININESS) {

        var shininess = this.readWord(data);
        material.shininess = shininess;
        this.debugMessage('   Shininess : ' + shininess);

      } else if (next === MAT_TRANSPARENCY) {

        var opacity = this.readWord(data);
        material.opacity = opacity * 0.01;
        this.debugMessage('  Opacity : ' + opacity);
        material.transparent = opacity < 100 ? true : false;

      } else if (next === MAT_TEXMAP) {

        this.debugMessage('   ColorMap');
        this.resetPosition(data);
        material.map = this.readMap(data, path);

      } else if (next === MAT_BUMPMAP) {

        this.debugMessage('   BumpMap');
        this.resetPosition(data);
        material.bumpMap = this.readMap(data, path);

      } else if (next === MAT_OPACMAP) {

        this.debugMessage('   OpacityMap');
        this.resetPosition(data);
        material.alphaMap = this.readMap(data, path);

      } else if (next === MAT_SPECMAP) {

        this.debugMessage('   SpecularMap');
        this.resetPosition(data);
        material.specularMap = this.readMap(data, path);

      } else {

        this.debugMessage('   Unknown material chunk: ' + next.toString(16));

      }

      next = this.nextChunk(data, chunk);

    }

    this.endChunk(chunk);

    this.materials[material.name] = material;

  },

  /**
   * Read mesh data chunk.
   *
   * @method readMesh
   * @param {Dataview} data Dataview in use.
   * @return {Mesh} The parsed mesh.
   */
  readMesh: function (data) {

    var chunk = this.readChunk(data);
    var next = this.nextChunk(data, chunk);

    var geometry = new BufferGeometry();
    var uvs = [];

    var material = new MeshPhongMaterial();
    var mesh = new Mesh(geometry, material);
    mesh.name = 'mesh';

    while (next !== 0) {

      if (next === POINT_ARRAY) {

        var points = this.readWord(data);

        this.debugMessage('   Vertex: ' + points);

        //BufferGeometry

        var vertices = [];

        for (var i = 0; i < points; i++) {

          vertices.push(this.readFloat(data));
          vertices.push(this.readFloat(data));
          vertices.push(this.readFloat(data));

        }

        geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));

      } else if (next === FACE_ARRAY) {

        this.resetPosition(data);
        this.readFaceArray(data, mesh);

      } else if (next === TEX_VERTS) {

        var texels = this.readWord(data);

        this.debugMessage('   UV: ' + texels);

        //BufferGeometry

        var uvs = [];

        for (var i = 0; i < texels; i++) {

          uvs.push(this.readFloat(data));
          uvs.push(this.readFloat(data));

        }

        geometry.setAttribute('uv', new Float32BufferAttribute(uvs, 2));


      } else if (next === MESH_MATRIX) {

        this.debugMessage('   Tranformation Matrix (TODO)');

        var values = [];
        for (var i = 0; i < 12; i++) {

          values[i] = this.readFloat(data);

        }

        var matrix = new Matrix4();

        //X Line
        matrix.elements[0] = values[0];
        matrix.elements[1] = values[6];
        matrix.elements[2] = values[3];
        matrix.elements[3] = values[9];

        //Y Line
        matrix.elements[4] = values[2];
        matrix.elements[5] = values[8];
        matrix.elements[6] = values[5];
        matrix.elements[7] = values[11];

        //Z Line
        matrix.elements[8] = values[1];
        matrix.elements[9] = values[7];
        matrix.elements[10] = values[4];
        matrix.elements[11] = values[10];

        //W Line
        matrix.elements[12] = 0;
        matrix.elements[13] = 0;
        matrix.elements[14] = 0;
        matrix.elements[15] = 1;

        matrix.transpose();

        var inverse = new Matrix4();
        inverse.getInverse(matrix);
        geometry.applyMatrix4(inverse);

        matrix.decompose(mesh.position, mesh.quaternion, mesh.scale);

      } else {

        this.debugMessage('   Unknown mesh chunk: ' + next.toString(16));

      }

      next = this.nextChunk(data, chunk);

    }

    this.endChunk(chunk);

    geometry.computeVertexNormals();

    return mesh;

  },

  /**
   * Read face array data chunk.
   *
   * @method readFaceArray
   * @param {Dataview} data Dataview in use.
   * @param {Mesh} mesh Mesh to be filled with the data read.
   */
  readFaceArray: function (data, mesh) {

    var chunk = this.readChunk(data);
    var faces = this.readWord(data);

    this.debugMessage('   Faces: ' + faces);

    var index = [];

    for (var i = 0; i < faces; ++i) {

      index.push(this.readWord(data), this.readWord(data), this.readWord(data));

      this.readWord(data); // visibility

    }

    mesh.geometry.setIndex(index);

    //The rest of the FACE_ARRAY chunk is subchunks

    while (this.position < chunk.end) {

      var chunk = this.readChunk(data);

      if (chunk.id === MSH_MAT_GROUP) {

        this.debugMessage('      Material Group');

        this.resetPosition(data);

        var group = this.readMaterialGroup(data);

        var material = this.materials[group.name];

        if (material !== undefined) {

          mesh.material = material;

          if (material.name === '') {

            material.name = mesh.name;

          }

        }

      } else {

        this.debugMessage('      Unknown face array chunk: ' + chunk.toString(16));

      }

      this.endChunk(chunk);

    }

    this.endChunk(chunk);

  },

  /**
   * Read texture map data chunk.
   *
   * @method readMap
   * @param {Dataview} data Dataview in use.
   * @param {String} path Path for external resources.
   * @return {Texture} Texture read from this data chunk.
   */
  readMap: function (data, path) {

    var chunk = this.readChunk(data);
    var next = this.nextChunk(data, chunk);
    var texture = {};

    var loader = new TextureLoader(this.manager);
    loader.setPath(this.resourcePath || path).setCrossOrigin(this.crossOrigin);

    while (next !== 0) {

      if (next === MAT_MAPNAME) {

        var name = this.readString(data, 128);
        texture = loader.load(name);

        this.debugMessage('      File: ' + path + name);

      } else if (next === MAT_MAP_UOFFSET) {

        texture.offset.x = this.readFloat(data);
        this.debugMessage('      OffsetX: ' + texture.offset.x);

      } else if (next === MAT_MAP_VOFFSET) {

        texture.offset.y = this.readFloat(data);
        this.debugMessage('      OffsetY: ' + texture.offset.y);

      } else if (next === MAT_MAP_USCALE) {

        texture.repeat.x = this.readFloat(data);
        this.debugMessage('      RepeatX: ' + texture.repeat.x);

      } else if (next === MAT_MAP_VSCALE) {

        texture.repeat.y = this.readFloat(data);
        this.debugMessage('      RepeatY: ' + texture.repeat.y);

      } else {

        this.debugMessage('      Unknown map chunk: ' + next.toString(16));

      }

      next = this.nextChunk(data, chunk);

    }

    this.endChunk(chunk);

    return texture;

  },

  /**
   * Read material group data chunk.
   *
   * @method readMaterialGroup
   * @param {Dataview} data Dataview in use.
   * @return {Object} Object with name and index of the object.
   */
  readMaterialGroup: function (data) {

    this.readChunk(data);
    var name = this.readString(data, 64);
    var numFaces = this.readWord(data);

    this.debugMessage('         Name: ' + name);
    this.debugMessage('         Faces: ' + numFaces);

    var index = [];
    for (var i = 0; i < numFaces; ++i) {

      index.push(this.readWord(data));

    }

    return {name: name, index: index};

  },

  /**
   * Read a color value.
   *
   * @method readColor
   * @param {DataView} data Dataview.
   * @return {Color} Color value read..
   */
  readColor: function (data) {

    var chunk = this.readChunk(data);
    var color = new Color();

    if (chunk.id === COLOR_24 || chunk.id === LIN_COLOR_24) {

      var r = this.readByte(data);
      var g = this.readByte(data);
      var b = this.readByte(data);

      color.setRGB(r / 255, g / 255, b / 255);

      this.debugMessage('      Color: ' + color.r + ', ' + color.g + ', ' + color.b);

    } else if (chunk.id === COLOR_F || chunk.id === LIN_COLOR_F) {

      var r = this.readFloat(data);
      var g = this.readFloat(data);
      var b = this.readFloat(data);

      color.setRGB(r, g, b);

      this.debugMessage('      Color: ' + color.r + ', ' + color.g + ', ' + color.b);

    } else {

      this.debugMessage('      Unknown color chunk: ' + chunk.toString(16));

    }

    this.endChunk(chunk);
    return color;

  },

  /**
   * Read next chunk of data.
   *
   * @method readChunk
   * @param {DataView} data Dataview.
   * @return {Object} Chunk of data read.
   */
  readChunk: function (data) {

    var chunk = {};

    chunk.cur = this.position;
    chunk.id = this.readWord(data);
    chunk.size = this.readDWord(data);
    chunk.end = chunk.cur + chunk.size;
    chunk.cur += 6;

    return chunk;

  },

  /**
   * Set position to the end of the current chunk of data.
   *
   * @method endChunk
   * @param {Object} chunk Data chunk.
   */
  endChunk: function (chunk) {

    this.position = chunk.end;

  },

  /**
   * Move to the next data chunk.
   *
   * @method nextChunk
   * @param {DataView} data Dataview.
   * @param {Object} chunk Data chunk.
   */
  nextChunk: function (data, chunk) {

    if (chunk.cur >= chunk.end) {

      return 0;

    }

    this.position = chunk.cur;

    try {

      var next = this.readChunk(data);
      chunk.cur += next.size;
      return next.id;

    } catch (e) {

      this.debugMessage('Unable to read chunk at ' + this.position);
      return 0;

    }

  },

  /**
   * Reset dataview position.
   *
   * @method resetPosition
   */
  resetPosition: function () {

    this.position -= 6;

  },

  /**
   * Read byte value.
   *
   * @method readByte
   * @param {DataView} data Dataview to read data from.
   * @return {Number} Data read from the dataview.
   */
  readByte: function (data) {

    var v = data.getUint8(this.position, true);
    this.position += 1;
    return v;

  },

  /**
   * Read 32 bit float value.
   *
   * @method readFloat
   * @param {DataView} data Dataview to read data from.
   * @return {Number} Data read from the dataview.
   */
  readFloat: function (data) {

    try {

      var v = data.getFloat32(this.position, true);
      this.position += 4;
      return v;

    } catch (e) {

      this.debugMessage(e + ' ' + this.position + ' ' + data.byteLength);

    }

  },

  /**
   * Read 32 bit signed integer value.
   *
   * @method readInt
   * @param {DataView} data Dataview to read data from.
   * @return {Number} Data read from the dataview.
   */
  readInt: function (data) {

    var v = data.getInt32(this.position, true);
    this.position += 4;
    return v;

  },

  /**
   * Read 16 bit signed integer value.
   *
   * @method readShort
   * @param {DataView} data Dataview to read data from.
   * @return {Number} Data read from the dataview.
   */
  readShort: function (data) {

    var v = data.getInt16(this.position, true);
    this.position += 2;
    return v;

  },

  /**
   * Read 64 bit unsigned integer value.
   *
   * @method readDWord
   * @param {DataView} data Dataview to read data from.
   * @return {Number} Data read from the dataview.
   */
  readDWord: function (data) {

    var v = data.getUint32(this.position, true);
    this.position += 4;
    return v;

  },

  /**
   * Read 32 bit unsigned integer value.
   *
   * @method readWord
   * @param {DataView} data Dataview to read data from.
   * @return {Number} Data read from the dataview.
   */
  readWord: function (data) {

    var v = data.getUint16(this.position, true);
    this.position += 2;
    return v;

  },

  /**
   * Read string value.
   *
   * @method readString
   * @param {DataView} data Dataview to read data from.
   * @param {Number} maxLength Max size of the string to be read.
   * @return {String} Data read from the dataview.
   */
  readString: function (data, maxLength) {

    var s = '';

    for (var i = 0; i < maxLength; i++) {

      var c = this.readByte(data);
      if (!c) {

        break;

      }

      s += String.fromCharCode(c);

    }

    return s;

  },

  /**
   * Print debug message to the console.
   *
   * Is controlled by a flag to show or hide debug messages.
   *
   * @method debugMessage
   * @param {Object} message Debug message to print to the console.
   */
  debugMessage: function (message) {

    if (this.debug) {

      console.log(message);

    }

  }

});

// var NULL_CHUNK = 0x0000;
var M3DMAGIC = 0x4D4D;
// var SMAGIC = 0x2D2D;
// var LMAGIC = 0x2D3D;
var MLIBMAGIC = 0x3DAA;
// var MATMAGIC = 0x3DFF;
var CMAGIC = 0xC23D;
var M3D_VERSION = 0x0002;
// var M3D_KFVERSION = 0x0005;
var COLOR_F = 0x0010;
var COLOR_24 = 0x0011;
var LIN_COLOR_24 = 0x0012;
var LIN_COLOR_F = 0x0013;
// var INT_PERCENTAGE = 0x0030;
// var FLOAT_PERCENTAGE = 0x0031;
var MDATA = 0x3D3D;
var MESH_VERSION = 0x3D3E;
var MASTER_SCALE = 0x0100;
// var LO_SHADOW_BIAS = 0x1400;
// var HI_SHADOW_BIAS = 0x1410;
// var SHADOW_MAP_SIZE = 0x1420;
// var SHADOW_SAMPLES = 0x1430;
// var SHADOW_RANGE = 0x1440;
// var SHADOW_FILTER = 0x1450;
// var RAY_BIAS = 0x1460;
// var O_CONSTS = 0x1500;
// var AMBIENT_LIGHT = 0x2100;
// var BIT_MAP = 0x1100;
// var SOLID_BGND = 0x1200;
// var V_GRADIENT = 0x1300;
// var USE_BIT_MAP = 0x1101;
// var USE_SOLID_BGND = 0x1201;
// var USE_V_GRADIENT = 0x1301;
// var FOG = 0x2200;
// var FOG_BGND = 0x2210;
// var LAYER_FOG = 0x2302;
// var DISTANCE_CUE = 0x2300;
// var DCUE_BGND = 0x2310;
// var USE_FOG = 0x2201;
// var USE_LAYER_FOG = 0x2303;
// var USE_DISTANCE_CUE = 0x2301;
var MAT_ENTRY = 0xAFFF;
var MAT_NAME = 0xA000;
var MAT_AMBIENT = 0xA010;
var MAT_DIFFUSE = 0xA020;
var MAT_SPECULAR = 0xA030;
var MAT_SHININESS = 0xA040;
// var MAT_SHIN2PCT = 0xA041;
var MAT_TRANSPARENCY = 0xA050;
// var MAT_XPFALL = 0xA052;
// var MAT_USE_XPFALL = 0xA240;
// var MAT_REFBLUR = 0xA053;
// var MAT_SHADING = 0xA100;
// var MAT_USE_REFBLUR = 0xA250;
// var MAT_SELF_ILLUM = 0xA084;
var MAT_TWO_SIDE = 0xA081;
// var MAT_DECAL = 0xA082;
var MAT_ADDITIVE = 0xA083;
var MAT_WIRE = 0xA085;
// var MAT_FACEMAP = 0xA088;
// var MAT_TRANSFALLOFF_IN = 0xA08A;
// var MAT_PHONGSOFT = 0xA08C;
// var MAT_WIREABS = 0xA08E;
var MAT_WIRE_SIZE = 0xA087;
var MAT_TEXMAP = 0xA200;
// var MAT_SXP_TEXT_DATA = 0xA320;
// var MAT_TEXMASK = 0xA33E;
// var MAT_SXP_TEXTMASK_DATA = 0xA32A;
// var MAT_TEX2MAP = 0xA33A;
// var MAT_SXP_TEXT2_DATA = 0xA321;
// var MAT_TEX2MASK = 0xA340;
// var MAT_SXP_TEXT2MASK_DATA = 0xA32C;
var MAT_OPACMAP = 0xA210;
// var MAT_SXP_OPAC_DATA = 0xA322;
// var MAT_OPACMASK = 0xA342;
// var MAT_SXP_OPACMASK_DATA = 0xA32E;
var MAT_BUMPMAP = 0xA230;
// var MAT_SXP_BUMP_DATA = 0xA324;
// var MAT_BUMPMASK = 0xA344;
// var MAT_SXP_BUMPMASK_DATA = 0xA330;
var MAT_SPECMAP = 0xA204;
// var MAT_SXP_SPEC_DATA = 0xA325;
// var MAT_SPECMASK = 0xA348;
// var MAT_SXP_SPECMASK_DATA = 0xA332;
// var MAT_SHINMAP = 0xA33C;
// var MAT_SXP_SHIN_DATA = 0xA326;
// var MAT_SHINMASK = 0xA346;
// var MAT_SXP_SHINMASK_DATA = 0xA334;
// var MAT_SELFIMAP = 0xA33D;
// var MAT_SXP_SELFI_DATA = 0xA328;
// var MAT_SELFIMASK = 0xA34A;
// var MAT_SXP_SELFIMASK_DATA = 0xA336;
// var MAT_REFLMAP = 0xA220;
// var MAT_REFLMASK = 0xA34C;
// var MAT_SXP_REFLMASK_DATA = 0xA338;
// var MAT_ACUBIC = 0xA310;
var MAT_MAPNAME = 0xA300;
// var MAT_MAP_TILING = 0xA351;
// var MAT_MAP_TEXBLUR = 0xA353;
var MAT_MAP_USCALE = 0xA354;
var MAT_MAP_VSCALE = 0xA356;
var MAT_MAP_UOFFSET = 0xA358;
var MAT_MAP_VOFFSET = 0xA35A;
// var MAT_MAP_ANG = 0xA35C;
// var MAT_MAP_COL1 = 0xA360;
// var MAT_MAP_COL2 = 0xA362;
// var MAT_MAP_RCOL = 0xA364;
// var MAT_MAP_GCOL = 0xA366;
// var MAT_MAP_BCOL = 0xA368;
var NAMED_OBJECT = 0x4000;
// var N_DIRECT_LIGHT = 0x4600;
// var DL_OFF = 0x4620;
// var DL_OUTER_RANGE = 0x465A;
// var DL_INNER_RANGE = 0x4659;
// var DL_MULTIPLIER = 0x465B;
// var DL_EXCLUDE = 0x4654;
// var DL_ATTENUATE = 0x4625;
// var DL_SPOTLIGHT = 0x4610;
// var DL_SPOT_ROLL = 0x4656;
// var DL_SHADOWED = 0x4630;
// var DL_LOCAL_SHADOW2 = 0x4641;
// var DL_SEE_CONE = 0x4650;
// var DL_SPOT_RECTANGULAR = 0x4651;
// var DL_SPOT_ASPECT = 0x4657;
// var DL_SPOT_PROJECTOR = 0x4653;
// var DL_SPOT_OVERSHOOT = 0x4652;
// var DL_RAY_BIAS = 0x4658;
// var DL_RAYSHAD = 0x4627;
// var N_CAMERA = 0x4700;
// var CAM_SEE_CONE = 0x4710;
// var CAM_RANGES = 0x4720;
// var OBJ_HIDDEN = 0x4010;
// var OBJ_VIS_LOFTER = 0x4011;
// var OBJ_DOESNT_CAST = 0x4012;
// var OBJ_DONT_RECVSHADOW = 0x4017;
// var OBJ_MATTE = 0x4013;
// var OBJ_FAST = 0x4014;
// var OBJ_PROCEDURAL = 0x4015;
// var OBJ_FROZEN = 0x4016;
var N_TRI_OBJECT = 0x4100;
var POINT_ARRAY = 0x4110;
// var POINT_FLAG_ARRAY = 0x4111;
var FACE_ARRAY = 0x4120;
var MSH_MAT_GROUP = 0x4130;
// var SMOOTH_GROUP = 0x4150;
// var MSH_BOXMAP = 0x4190;
var TEX_VERTS = 0x4140;
var MESH_MATRIX = 0x4160;
// var MESH_COLOR = 0x4165;
// var MESH_TEXTURE_INFO = 0x4170;
// var KFDATA = 0xB000;
// var KFHDR = 0xB00A;
// var KFSEG = 0xB008;
// var KFCURTIME = 0xB009;
// var AMBIENT_NODE_TAG = 0xB001;
// var OBJECT_NODE_TAG = 0xB002;
// var CAMERA_NODE_TAG = 0xB003;
// var TARGET_NODE_TAG = 0xB004;
// var LIGHT_NODE_TAG = 0xB005;
// var L_TARGET_NODE_TAG = 0xB006;
// var SPOTLIGHT_NODE_TAG = 0xB007;
// var NODE_ID = 0xB030;
// var NODE_HDR = 0xB010;
// var PIVOT = 0xB013;
// var INSTANCE_NAME = 0xB011;
// var MORPH_SMOOTH = 0xB015;
// var BOUNDBOX = 0xB014;
// var POS_TRACK_TAG = 0xB020;
// var COL_TRACK_TAG = 0xB025;
// var ROT_TRACK_TAG = 0xB021;
// var SCL_TRACK_TAG = 0xB022;
// var MORPH_TRACK_TAG = 0xB026;
// var FOV_TRACK_TAG = 0xB023;
// var ROLL_TRACK_TAG = 0xB024;
// var HOT_TRACK_TAG = 0xB027;
// var FALL_TRACK_TAG = 0xB028;
// var HIDE_TRACK_TAG = 0xB029;
// var POLY_2D = 0x5000;
// var SHAPE_OK = 0x5010;
// var SHAPE_NOT_OK = 0x5011;
// var SHAPE_HOOK = 0x5020;
// var PATH_3D = 0x6000;
// var PATH_MATRIX = 0x6005;
// var SHAPE_2D = 0x6010;
// var M_SCALE = 0x6020;
// var M_TWIST = 0x6030;
// var M_TEETER = 0x6040;
// var M_FIT = 0x6050;
// var M_BEVEL = 0x6060;
// var XZ_CURVE = 0x6070;
// var YZ_CURVE = 0x6080;
// var INTERPCT = 0x6090;
// var DEFORM_LIMIT = 0x60A0;
// var USE_CONTOUR = 0x6100;
// var USE_TWEEN = 0x6110;
// var USE_SCALE = 0x6120;
// var USE_TWIST = 0x6130;
// var USE_TEETER = 0x6140;
// var USE_FIT = 0x6150;
// var USE_BEVEL = 0x6160;
// var DEFAULT_VIEW = 0x3000;
// var VIEW_TOP = 0x3010;
// var VIEW_BOTTOM = 0x3020;
// var VIEW_LEFT = 0x3030;
// var VIEW_RIGHT = 0x3040;
// var VIEW_FRONT = 0x3050;
// var VIEW_BACK = 0x3060;
// var VIEW_USER = 0x3070;
// var VIEW_CAMERA = 0x3080;
// var VIEW_WINDOW = 0x3090;
// var VIEWPORT_LAYOUT_OLD = 0x7000;
// var VIEWPORT_DATA_OLD = 0x7010;
// var VIEWPORT_LAYOUT = 0x7001;
// var VIEWPORT_DATA = 0x7011;
// var VIEWPORT_DATA_3 = 0x7012;
// var VIEWPORT_SIZE = 0x7020;
// var NETWORK_VIEW = 0x7030;

export {TDSLoader};
